That's great. The only obvious giveaway is the grass texture. I expected a slight bounce after the touchdown but a really good shock absorption system could work as shown. Very nice. A bird or two flying through the field of view would give that extra bit of atmosphere, as would some detail in the grass like runway markers, spectators, or even a perimeter road...
edit - at first glance focusing only on the aircraft, I thought it was real. Very good work, better than some scenes from both the LoTR and Star Trek: Nemesis movies I saw this weekend.
